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松长脂象甲(Pissodes nitidus Roelofs)自1973年对我局的人工红松种子园开始危害,被害率达20％,虫口密度每梢最高56只,最低16只。被害株经连年危害,因受害新梢枯死,高生长受到极大影响,树冠呈多叉生长,形成扫帚状小老树,林木结实也受到严重影响。目前该虫的危害不断扩大和蔓廷,对红松人工林的生长是一个很大的威胁。我站于1976年开始对该虫的发生危害、防治等做了初步试验。又于1978年4月～10月间,在一场的配合下,做了比较详细的观察。今总结如下:
Pissodes nitidus Roelofs began to harm the artificial korean pine seed orchards of our bureau in 1973. The rate of damage was 20%. The highest density of pests was 56 per shoot and the lowest was 16. Victims damaged by successive years, due to the victim withered dead, high growth has been greatly affected, the crown was a multi-fork growth, the formation of small broom-like trees, trees are also seriously affected. At present, the harm of pests is constantly expanding and creeping, which is a big threat to the growth of Pinus koraiensis plantation. I started in 1976 on the pest of the harm, prevention and treatment and so did a preliminary test. Again in April 1978 to October, with the cooperation, made a more detailed observation. Here is a summary: